docs: def grow(self, width, height=None):
          """ Expands the region by ``width`` on both sides and ``height`` on the top and bottom.
  
          If only one value is provided, expands the region by that amount on all sides.
          Equivalent to ``nearby()``.
          """
          if height is None:
              return self.nearby(width)
          else:
              return Region(
                  self.x-width,
                  self.y-height,
                  self.w+(2*width),
                  self.h+(2*height)).clipRegionToScreen()